(19)

(11)

EP 3 439 814 A1

(12)

(43) Date of publication: 13.02.2019 Bulletin 2019/07 (21) Application number: 17779664.6 (22) Date of filing: 04.04.2017

(51) International Patent Classification (IPC):  B22D 18/06(2006.01) B22D 25/02(2006.01) B22D 21/06(2006.01) A63B 53/04(2015.01) (86) International application number: PCT/US2017/025955 (87) International publication number: WO 2017/176763 (12.10.2017 Gazette 2017/41)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 06.04.2016 US 201662318854 P 06.04.2016 US 201662319215 P (71) Applicant: Callaway Golf Company Carlsbad, CA 92008 (US)	(72) Inventors: SMITH, Norm Carlsbad CA 92008 (US) WICKETT, Lowell Carlsbad CA 92008 (US) PARAISO, Jan Carlsbad CA 92008 (US) LEPOSKY, Mark Carlsbad CA 92008 (US) CROSS, Jeff Carlsbad CA 92008 (US) SHEEHAN, John Carlsbad CA 92008 (US) RICHARDSON, Bill Carlsbad CA 92008 (US) (74) Representative: Haseltine Lake LLP  Redcliff Quay 120 Redcliff Street Bristol BS1 6HU Bristol BS1 6HU (GB)